StacksVerified U.S. regulatory reference

40 CFR §1066.290

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Use good engineering judgment to provide a driver's aid that facilitates compliance with the requirements of § 1066.425. Verify the speed accuracy of the driver's aid as described in § 1066.235.